- 2-9 -
symbol
I/O
Description
PD0 to PD7
I/O
PE0/EC0
Input/Input
External event inputs for timer/counter.(2 pins)
PE1/EC1
Input/Input
PE2/RMC
Input/Input
Remote control reception circuit input.
PE3/NMI
Input/Input
Non-maskable interruption request input.
PE4/PWM
Output/Output
14-bit PWM output.
PE5/TO/ADJ
Output/Output/Output
Rectangular wave output for 16-bit timer/counter.
Output for 32kHz oscillation frequency
demultiplication.
PE0 to PF7
I/O
(Port F)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull-up
resistor can be set through the software in a unit of 4 bits
(8 pins)
PG0 to PG7
I/O
(Port G)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull-up
resistor can be set through the software in a unit of 4 bits
(8 pins)
PH0 to PH7
I/O
(Port H)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull-up
resistor can be set through the software in a unit of 4 bits
(8 pins)
I/O/Input
(Port I)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull-up
resistor can be set through the software in a unit of 4 bits
(8 pins)
PI4 to PI7
I/O
External interruption request inputs.
EXTAL
Input
Crystal connectors for system clock oscillation. When the clock is supplied
XTAL
Output
externally, input to EXTAL; opposite phase clock should be input to XTAL.
TEX
Input
Crysal connectors for 32kHz timer/counter colck oscillation circuit.
Connect a 32kHz crystal oscillator between TEX and TX.
TX
Output
For usage as event input, connect clock oscillation source to TEX,
and open TX.
RST
Input
Low-Ievel active, system reset.
NC
NC. Under normal operating conditions, connect to V
DD
AV
REF
Input
Reference voltage input for A/D converter.
AV
SS
A/D converter GND.
V
DD
Positive power supply.
V
SS
GND
(Port E)
6-bit port. Lower 4 bits
are for inputs; upper 2
bits are for outputs.
Incorporation of pull-up
resistor can be set
through the software.
(8 pins)
(Port D)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull-up
resistor can be set through the software in a unit of 4 bits.
(8 pins)
PI0/INT0
to
PI3/NT3
Содержание DA-3520
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